import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class Hua_Rong_Road extends JFrame implements MouseListener,KeyListener,ActionListener {
    Person person[]=new Person[10];
    JButton left,right,above,below;
    JButton restart=new JButton("重新开始");
    public Hua_Rong_Road() {
        init();
        setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        setBounds(100,100,320,500);
        setVisible(true);
        validate();
    }
    public void init() {
        setLayout(null);
        add(restart);
        restart.setBounds(100,320,120,35);
        restart.addActionListener(this);
        String name[]={"曹操","关羽","张","刘","周","黄","兵","兵","兵","兵"};
        for(int k=0;k<name.length;k++) {
            person[k]=new Person(k,name[k]);
            person[k].addMouseListener(this);
            person[k].addKeyListener(this);
            add(person[k]);
        }
        person[0].setBounds(104,54,100,100);
        person[1].setBounds(104,154,100,50);
        person[2].setBounds(54, 154,50,100);
        person[3].setBounds(204,154,50,100);
        person[4].setBounds(54, 54, 50,100);
        person[5].setBounds(204, 54, 50,100);
        person[6].setBounds(54,254,50,50);
        person[7].setBounds(204,254,50,50);
        person[8].setBounds(104,204,50,50);
        person[9].setBounds(154,204,50,50);
        person[9].requestFocus();
        left=new JButton();
        right=new JButton();
        above=new JButton();
        below=new JButton();
        add(left);
        add(right);
        add(above);
        add(below);
        left.setBounds(49,49,5,260);
        right.setBounds(254,49,5,260);
        above.setBounds(49,49,210,5);
        below.setBounds(49,304,210,5);
        validate();
    }
    public void keyTyped(KeyEvent e){}
    public void keyReleased(KeyEvent e){}
    public void keyPressed(KeyEvent e) {
        Person man=(Person)e.getSource();
        if(e.getKeyCode()==KeyEvent.VK_DOWN)
            go(man,below);
        if(e.getKeyCode()==KeyEvent.VK_UP)
            go(man,above);
        if(e.getKeyCode()==KeyEvent.VK_LEFT)
            go(man,left);
        if(e.getKeyCode()==KeyEvent.VK_RIGHT)
            go(man,right);
    }
    public void mousePressed(MouseEvent e) {
        Person man=(Person)e.getSource();
        int x=-1,y=-1;
        x=e.getX();
        y=e.getY();
        int w=man.getBounds().width;
        int h=man.getBounds().height;
        if(y>h/2)
            go(man,below);
        if(y<h/2)
            go(man,above);
        if(x<w/2)
            go(man,left);
        if(x>w/2)
            go(man,right);
    }
    public void mouseReleased(MouseEvent e) {}
    public void mouseEntered(MouseEvent e)  {}
    public void mouseExited(MouseEvent e)   {}
    public void mouseClicked(MouseEvent e)  {}
    public void go(Person man,JButton direction) {
        boolean move=true;
        Rectangle manRect=man.getBounds();
        int x=man.getBounds().x;
        int y=man.getBounds().y;
        if(direction==below)
            y=y+50;
        else if(direction==above)
            y=y-50;
        else if(direction==left)
            x=x-50;
        else if(direction==right)
            x=x+50;
        manRect.setLocation(x,y);
        Rectangle directionRect=direction.getBounds();
        for(int k=0;k<10;k++) {
            Rectangle personRect=person[k].getBounds();
            if((manRect.intersects(personRect))&&(man.number!=k))
                move=false;
        }
        if(manRect.intersects(directionRect))
            move=false;
        if(move==true)
            man.setLocation(x,y);
    }
    public void actionPerformed(ActionEvent e) {
        dispose();
        new Hua_Rong_Road();
    }
}
